UNISONIC TECHNOLOGIES CO., LTD
78MXX LINEAR INTEGRATED CIRCUIT
www.unisonic.com.tw 1 of 10
Copyright © 2009 Unisonic Technologies Co., Ltd QW-R101-004,H
3-TERMINAL 0.5A POSITIVE
VOLTAGE REGULATOR
DESCRIPTION
The UTC 78MXX family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that required
supply current up to 0.5A.
FEATURES
* Output Current up to 0.5A
* Fixed Output Voltage of 5V, 6V, 8V, 9V, 12V,
15V ,18V and 24V Available
* Thermal Overload Shutdown Protection
* Short Circuit Current Limiting
* Output Transistor SOA Protection
TO-92
1
TO-126
TO-220
1
TO-126C
TO-220F
1
11
ORDERING INFORMATION
Ordering Number Pin Assignment
Normal Lead Free Halogen Free Package 1 2 3 Packing
78Mxx-T60-K 78MxxL-T60-K 78MxxG-T60-K TO-126 I G O Bulk
78Mxx-T6C-K 78MxxL-T6C-K 78MxxG-T6C-K TO-126C I G O Bulk
78Mxx-T92-B 78MxxL-T92-B 78MxxG-T92-B TO-92 O G I Tape Box
78Mxx-T92-K 78MxxL-T92-K 78MxxG-T92-K TO-92 O G I Bulk
78Mxx-TA3-T 78MxxL-TA3-T 78MxxG-TA3-T TO-220 I G O Tube
78Mxx-TF3-T 78MxxL-TF3-T 78MxxG-TF3-T TO-220F I G O Tube
78MXX LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 2 of 10
www.unisonic.com.tw QW-R101-004,H
MARKING INFORMATION
PACKAGE VOLTAGE CODE MARKING
TO-220
TO-220F
123
UTC
78MXX
Date Code
L: Lead Free
G: Halogen Free
Lot Code
Voltage Code
TO-126
TO-126C
TO-92
05: 5V
06: 6V
08: 8V
09: 9V
12: 12V
15: 15V
18: 18V
24: 24V
78MXX LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 3 of 10
www.unisonic.com.tw QW-R101-004,H
BLOCK DIAGRAM
SERIES
PASS
ELEMENT
3
2
CURRENT
GENERATOR
SOA
PROTECTION
STARTING
CIRCUIT
REFERENCE
VOLTAGE
ERROR
AMPLIFIER
THERMAL
PROTECTION
INPUT OUTPUT
GND
R20
R19
REFERENCE
VOLTAGE
1
78MXX LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 4 of 10
www.unisonic.com.tw QW-R101-004,H
ABSOLUTE MAXIMUM RATINGS
(Operating temperature range applies unless otherwise specified)
PARAMETER SYMBOL RATING UNIT
VOUT=5~18V 35 V
Input Voltage VOUT=24V VIN 40 V
Output Current IOUT 0.5 A
Power Dissipation PD Internally Limited W
Operating Junction Temperature Range TOPR -20 ~ +125 °C
Storage Temperature Range TSTG -65 ~ +150 °C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
FOR UTC78M05
(Refer to the test circuits, TMIN≤TJ≤125°C, IOUT=350mA, VIN=10V, unless otherwise specified, Ci=0.33μF,Co=0.1μF)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ=25°C 4.80 5.0 5.20 V
Output Voltage VOUT IOUT=5mA ~ 350mA
VIN=7~ 20V 4.75 5.25 V
TJ =25°C, IOUT=5mA~0.5A 100 mV
Load Regulation ΔVOUT TJ =25°C, IOUT=5mA~200mA 50 mV
VIN =7 ~ 25V, TJ =25°C, IOUT=200mA 100 mV
Line regulation ΔVOUT VIN =8 ~ 25V, TJ =25°C, IOUT=200mA 50 mV
Quiescent Current IQ T
J =25°C 4.0 6.0 mA
VIN =8 ~ 25V, IOUT=200mA 0.8 mA
Quiescent Current Change ΔIQ IOUT=5mA~350mA 0.5 mA
Output Noise Voltage eN 10Hz≤f≤100KHz 40 μV
Ripple Rejection RR VIN =8 ~ 18V, f=120Hz
IOUT=300mA 62 dB
Peak Output Current IPEAK T
J =25°C 700 mA
Short-Circuit Current ISC V
IN=35V, TJ =25°C 300 mA
Dropout Voltage VD T
J =25°C, IOUT=500mA 2.0 V
FOR UTC78M06
(Refer to the test circuits, TMIN≤TJ≤125°C, IOUT=350mA,VIN=11V, unless otherwise specified, Ci=0.33μF,Co=0.1μF)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C, IOUT=5~350mA 5.76 6.0 6.24 V
Output Voltage VOUT VIN =8 ~ 21V,
IOUT=5mA~350mA 5.70 6.30 V
TJ =25°C, IOUT=5mA~0.5A 120 mV
Load Regulation ΔVOUT TJ =25°C, IOUT=5mA~200mA 60 mV
VIN=8V ~ 25V, TJ =25°C, IOUT=200mA 100 mV
Line regulation ΔVOUT VIN=9V ~ 25V, TJ =25°C, IOUT=200mA 50 mV
Quiescent Current IQ T
J =25°C 4.0 6 mA
IOUT=5mA ~ 350mA 0.5 mA
Quiescent Current Change ΔIQ VIN=9V~ 25V, IOUT=200mA 0.8 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 45 μV
Ripple Rejection RR VIN=9V ~ 19V, f=120Hz, TJ =25°C
IOUT=300mA 59 dB
Peak Output Current IPEAK T
J =25°C 700 mA
Short-Circuit Current ISC V
IN=35V, TJ =25°C 300 mA
Dropout Voltage VD T
J =25°C 2.0 V
78MXX LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 5 of 10
www.unisonic.com.tw QW-R101-004,H
ELECTRICAL CHARACTERISTICS (Cont.)
FOR UTC78M08
(Refer to the test circuits, TMIN≤TJ≤125°C, IOUT=350mA, VIN=14V, unless otherwise specified,Ci=0.33μF,Co=0.1μF)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C 7.68 8.0 8.32 V
Output Voltage VOUT VIN =10.5V ~ 23V,
IOUT=5mA~350mA 7.60 8.40 V
TJ =25°C, IOUT=5mA~0.5A 160 mV
Load Regulation ΔVOUT TJ =25°C, IOUT=5mA~200mA 80 mV
VIN =10.5V ~ 25V
TJ =25°C, IOUT=200mA 100 mV
Line regulation ΔVOUT VIN =11V ~ 25V
TJ =25°C, IOUT=200mA 50 mV
Quiescent Current IQ T
J =25°C 4.0 6 mA
VIN =10.5V ~ 25V, IOUT=200mA 0.8 mA
Quiescent Current Change ΔIQ IOUT=5mA~ 350mA 0.5 mA
Output Noise Voltage eN 10Hz≤f≤100KHz 52 μV
Ripple Rejection RR VIN =11.5V ~ 21.5V,
f=120Hz, IOUT=300mA 56 dB
Peak Output Current IPEAK T
J =25°C 700 mA
Short-Circuit Current ISC V
IN=35V, TJ =25°C 300 mA
Dropout Voltage VD T
J =25°C, IOUT=500mA 2.0 V
FOR UTC78M09
(Refer to the test circuits, TMIN≤TJ≤125°C, IOUT=350mA, VIN=17V, unless otherwise specified,Ci=0.33μF,Co=0.1μF)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C 8.64 9 9.36 V
Output Voltage VOUT VIN =12.5V ~ 25V,
IOUT=5mA~350mA 8.55 9.45 V
TJ =25°C, IOUT=5mA~0.5A 200 mV
Load Regulation ΔVOUT TJ =25°C, IOUT=5mA~200mA 100 mV
VIN =12.5V~ 25 V
TJ =25°C, IOUT=200mA 100 mV
Line regulation ΔVOUT VIN=13V~ 25V
TJ =25°C, IOUT=200mA 50 mV
Quiescent Current IQ T
J =25°C 4.1 6 mA
VIN =12.5V ~ 25V, IOUT=200mA 0.8 mA
Quiescent Current Change ΔIQ IOUT=5mA~350mA 0.5 mA
Output Noise Voltage eN 10Hz<=f<=100kHz 65 μV
Ripple Rejection RR VIN =13V~ 23V, f=120Hz
IOUT=300mA 55 dB
Peak Output Current IPEAK T
J =25°C 700 mA
Short-Circuit Current ISC V
IN=35V, TJ =25°C 300 mA
Dropout Voltage VD T
J =25°C, IOUT=500mA 2.0 V
78MXX LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 6 of 10
www.unisonic.com.tw QW-R101-004,H
ELECTRICAL CHARACTERISTICS (Cont.)
FOR UTC78M12
(Refer to the test circuits, TMIN≤TJ≤125°C, IOUT=350mA, VIN=19V, unless otherwise specified,Ci=0.33μF,Co=0.1μF)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C 11.52 12.0 12.48 V
Output Voltage VOUT VIN =14.5V to 27V,
IOUT=5mA~350mA 11.40 12.60 V
TJ =25°C,IOUT=5mA~0.5A 240 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=5mA~2A 120 mV
VIN =14.5V to 30V
TJ =25°C,IOUT=200mA 100 mV
Line regulation ΔVOUT VIN =16V to 30V
TJ =25°C,IOUT=200mA 50 mV
Quiescent Current IQ T
J =25°C 4.1 6.0 mA
VIN =14.5V to 30V,IOUT=200mA 0.8 mA
Quiescent Current Change ΔIQ IOUT=5mA~350mA 0.5 mA
Output Noise Voltage eN 10Hz≤f≤100kHz 75 μV
Ripple Rejection RR VIN =15V to 25V,f=120Hz
IOUT=300mA 55 dB
Peak Output Current IPEAK T
J =25°C 700 mA
Short-Circuit Current ISC V
IN=35V, TJ =25°C 300 mA
Dropout Voltage VD T
J =25°C,IOUT=500mA 2.0 V
FOR UTC78M15
(Refer to the test circuits, TMIN≤TJ≤125°C,IOUT=350mA,VIN=23V, unless otherwise specified,Ci=0.33μF,Co=0.1μF)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C 14.40 15.0 15.60 V
Output Voltage VOUT VIN =17.5V ~ 30V,
IOUT=5mA~350mA 14.25 15.75 V
TJ =25°C, IOUT=5mA~0.5A 300 mV
Load Regulation ΔVOUT TJ =25°C, IOUT=5mA~200mA 150 mV
VIN =17.5V ~ 30V
TJ =25°C, IOUT =200mA 100 mV
Line regulation ΔVOUT VIN =20V ~ 30V
TJ =25°C, IOUT =200mA 50 mV
Quiescent Current IQ T
J=25°C 4.1 6.0 mA
VIN =17.5V ~ 30V,IOUT=200mA 0.8 mA
Quiescent Current Change ΔIQ IOUT=5mA~350mA 0.5 mA
Output Noise Voltage eN 10Hz≤f≤100KHz 90 μV
Ripple Rejection RR VIN =18.5V ~ 28.5V
f=120Hz,IOUT=300mA 54 dB
Peak Output Current IPEAK T
J =25°C 700 mA
Short-Circuit Current ISC V
IN=35V, TJ =25°C 300 mA
Dropout Voltage VD T
J =25°C, IOUT=500mA 2.0 V
78MXX LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 7 of 10
www.unisonic.com.tw QW-R101-004,H
ELECTRICAL CHARACTERISTICS (Cont.)
FOR 78M18
(Refer to the test circuits, TMIN≤TJ≤125°C,IOUT=350mA,VIN=26V,unless otherwise specified, Ci=0.33μF,Co=0.1μF)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C 17.28 18.0 18.72 V
Output Voltage VOUT VIN =20.5V to 33V
IOUT=5mA~350mA 17.10 18.90 V
TJ =25°C,IOUT=5mA~0.5A 360 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=5mA~200mA 180 mV
VIN=21V to 33V
TJ =25°C, IOUT =200mA 100 mV
Line regulation ΔVOUT VIN =24V to 33V,
TJ =25°C, IOUT =200mA 50 mV
Quiescent Current IQ T
J =25°C 4.2 6 mA
VIN =21V to 33V, IOUT =200mA 0.8 mA
Quiescent Current Change ΔIQ IOUT=5mA~350mA 0.5 mA
Output Noise Voltage eN 10HzM≤f≤100KHz 100 μV
Ripple Rejection RR VIN=22V to 32V,f=120Hz
IOUT =300mA 53 dB
Peak Output Current IPEAK T
J =25°C 700 mA
Short-Circuit Current ISC V
IN=35V, TJ =25°C 300 mA
Dropout Voltage VD T
J =25°C 2.0 V
FOR 78M24
(Refer to the test circuits, TMIN≤TJ≤125°C,IOUT=350mA,VIN=33V,unless otherwise specified, Ci=0.33μF,Co=0.1μF)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
TJ =25°C 23.04 24.0 24.96 V
Output Voltage VOUT VIN =27V to 38V
IOUT=5mA-350mA 22.80 25.20 V
TJ =25°C,IOUT=5mA~0.5A 480 mV
Load Regulation ΔVOUT TJ =25°C,IOUT=5mA~200mA 240 mV
VIN =27V to 38V
TJ =25°C,IOUT=200mA 100 mV
Line regulation ΔVOUT VIN =28V to 38V
TJ =25°C,IOUT=200mA 50 mV
Quiescent Current IQ T
J =25°C, 4.2 6.0 mA
VIN =27V to 38V,IOUT=200mA 0.8 mA
Quiescent Current Change ΔIQ IOUT=5mA~350mA 0.5 mA
Output Noise Voltage eN 10Hz≤f≤100KHz 170 μV
Ripple Rejection RR VIN =28V to 38V,f=120Hz
IOUT=300mA 50 dB
Peak Output Current IPEAK T
J =25°C 700 mA
Short-Circuit Current ISC V
IN=35V, TJ =25°C 300 mA
Dropout Voltage VD T
J =25°C 2.0 V
Notes 1. The Maximum steady state usable output current is dependent on input voltage, heat sinking, lead
length of the package and copper pattern of PCB. The data above represents pulse test conditions with
junction temperatures specified at the initiation of test.
2. Power dissipation<0.5W
78MXX LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 8 of 10
www.unisonic.com.tw QW-R101-004,H
APPLICATION CIRCUIT
UTC
78MXX
3
1VoUTVIN
C1=0.33μFC0=0.1μF
2
Notes: 1. To specify an output voltage, substitute voltage value for "MXX".
2. Bypass capacitors are recommended for optimum stability and transient response and should be located
as close as possible to the regulators.
78MXX LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 9 of 10
www.unisonic.com.tw QW-R101-004,H
TYPICAL CHARACTERISTICS
100
50
0
-50
-100
-25 0 25 50 75 100 125 150
Junction Temperature, TJ(°C)
Output Voltage Deviation, ΔVOUT (mV)
Output Voltage Deviation vs Junction
Temperature
78M12
78M05
IOUT=5mA
0 5 10 15 20 25 30 35
Input Voltage, VIN (V)
0
1
2
3
4
5
6
7
Quiescent Current, IBIAS (mA)
Quiescent Current vs Input Voltage
(78M05)
IOUT=200mA
5.0
4.0
3.0
2.0
1.0
0
01.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
Output Voltage, VOUT (V)
Input Voltage, VIN (V)
Output Voltage vs Input Voltage
(78M05)
IOUT=0
IOUT=0.2A
IOUT=0.3A
4
0
05 101520253035
Output Voltage, VOUT (V)
Input Voltage, VIN (V)
Output Voltage vs Input Voltage
8
12
16
20
24 78M24
78M18
78M15
78M12
78M10
78M08
78M05
-25 25
050 75 100 125 150
1.0
1.5
2.0
Junction Temperature, TJ(°C)
Dropout Voltage, VD(V)
Dropout Voltage vs
Junction Temperature
≈
IOUT=0mA IOUT=20mA
IOUT=200mA
IOUT=300mA
510 15 20 25 30
150
300
450
600
750
900
1050
Peak Output Current, IOpeak (mA)
Peak Output Current vs Input to
Output Voltage Differential
TJ=25°C
TJ=-20°C
TJ=125°C
ΔVOUT=2%VOUT
Input to Output Voltage Differential,
(VIN -V
O) (V)
00
78MXX LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 10 of 10
www.unisonic.com.tw QW-R101-004,H
TYPICAL CHARACTERISTICS(Cont.)
200
-200
0
10
15
0 50 100
IOUT=200mA
(78M05)
Line Transient Response
020 40
0
0
300
-50
Load Transient Response
Time, t (μs) Time, t (ms)
VIN=10V
(78M05)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
